Generate SSH key

To generate the SSH key

# Ed25519 algorithm
ssh-keygen -t ed25519 -C christopher@gmail.com

# 4096 bits
ssh-keygen -t rsa -b 4096 -C christopher@gmail.com

To display the ssh key

# Ed25519 algorithm
cat ~/.ssh/id_ed25519.pub

# 4096 bits
cat ~/.ssh/id_rsa.pub

Copy SSH ID identity to server

ssh-copy-id user@host.com